56421212465 has 8 divisors (see below), whose sum is σ = 67773781248. Its totient is φ = 45091419120.

The previous prime is 56421212461. The next prime is 56421212563.

56421212465 is nontrivially palindromic in base 10.

56421212465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56421212465 - 2² = 56421212461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56421212461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5688407 + ... + 5698316.

It is an arithmetic number, because the mean of its divisors is an integer number (8471722656).

Almost surely, 2^56421212465 is an apocalyptic number.

It is an amenable number.

56421212465 is a deficient number, since it is larger than the sum of its proper divisors (11352568783).

56421212465 is a wasteful number, since it uses less digits than its factorization.

56421212465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387719.

The product of its digits is 115200, while the sum is 38.

The spelling of 56421212465 in words is "fifty-six billion, four hundred twenty-one million, two hundred twelve thousand, four hundred sixty-five".